VLBI astrometry of two millisecond pulsars
文献类型：会议论文
| 作者 | Yan, Zhen1,2,4; Shen, Zhi-qiang1,4; Yuan, Jian-ping3,4 ; Wang, Na3,4; Rottmann, Helge5; Alef, Walter5
|
| 出版日期 | 2013-02-21 |
| 会议名称 | IAU Symposium 291： Neutron Stars and Pulsars: Challenges and Opportunities after 80 years |
| 会议日期 | 20-31 August 2012 |
| 会议地点 | Beijing, China |
| 通讯作者邮箱 | yanzhen@shao.ac.cn |
| 关键词 | (stars:) pulsars: general |
| 卷号 | 291 |
| 页码 | 562-564 |
| 通讯作者 | Yan, Zhen |
| 英文摘要 | We present astrometric results on two millisecond pulsars, PSR B1257+12 and PSR J1022+1001, as carried out through VLBI. For PSR B1257+12, a model-independent distance of 710-38 +43 pc and proper motion of (mualpha = 46.44 ¡À 0.08 mas/yr, mudelta=-84.87 ¡À 0.32 mas/yr) were obtained from 5 epochs of VLBA and 4 epochs of EVN observations, spanning about 2 years. The two dimensional proper motion of PSR J1022+1001 (mualpha~-10.13 mas/yr, mudelta~16.89 mas/yr) was also estimated, using 3 epochs of EVN observations. Based on our results, the X-ray efficiency of PSR B1257+12 should be in the same range as other millisecond pulsars, and not as low as previously thought. |
| 会议主办者 | IAU |
| 会议网址 | http://www.pulsarastronomy.net/IAUS291/ |
| 会议录 | Neutron Stars and Pulsars: Challenges and Opportunities after 80 years, Proceedings of the International Astronomical Union, IAU Symposium 291
 |
| 会议录出版者 | Cambridge University Press |
| 语种 | 英语 |
| ISBN号 | 978-1-107-03380-1 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/991]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 新疆天文台_其它 |
| 作者单位 | 1.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China 2.University of Chinese Academy of Sciences, Beijing 100039, China 3.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China 4.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, China 5.Max Planck Institute for Radio Astronomy, Bonn 53121, Germany |
| 推荐引用方式 GB/T 7714 | Yan, Zhen,Shen, Zhi-qiang,Yuan, Jian-ping,et al. VLBI astrometry of two millisecond pulsars[C]. 见:IAU Symposium 291： Neutron Stars and Pulsars: Challenges and Opportunities after 80 years. Beijing, China. 20-31 August 2012.http://www.pulsarastronomy.net/IAUS291/. |
入库方式： OAI收割
来源：新疆天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。